initial commit

.drone.jsonnet

@@ -0,0 +1,159 @@
+local PipelineLinting = {
+  kind: 'pipeline',
+  name: 'linting',
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  steps: [
+    {
+      name: 'ansible-later',
+      image: 'thegeeklab/ansible-later',
+      commands: [
+        'ansible-later',
+      ],
+    },
+    {
+      name: 'python-format',
+      image: 'python:3.9',
+      environment: {
+        PY_COLORS: 1,
+      },
+      commands: [
+        'pip install -qq yapf',
+        '[ -z "$(find .  -type f -name *.py)" ] || (yapf -rd ./)',
+      ],
+    },
+    {
+      name: 'python-flake8',
+      image: 'python:3.9',
+      environment: {
+        PY_COLORS: 1,
+      },
+      commands: [
+        'pip install -qq flake8',
+        'flake8',
+      ],
+    },
+  ],
+  trigger: {
+    ref: ['refs/heads/master', 'refs/tags/**', 'refs/pull/**'],
+  },
+};
+
+local PipelineDeployment(scenario='rocky8') = {
+  kind: 'pipeline',
+  name: 'testing-' + scenario,
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  concurrency: {
+    limit: 1,
+  },
+  workspace: {
+    base: '/drone/src',
+    path: '${DRONE_REPO_NAME}',
+  },
+  steps: [
+    {
+      name: 'ansible-molecule',
+      image: 'thegeeklab/molecule:3',
+      environment: {
+        HCLOUD_TOKEN: { from_secret: 'hcloud_token' },
+      },
+      commands: [
+        'molecule test -s ' + scenario,
+      ],
+    },
+  ],
+  depends_on: [
+    'linting',
+  ],
+  trigger: {
+    ref: ['refs/heads/master', 'refs/tags/**'],
+  },
+};
+
+local PipelineDocumentation = {
+  kind: 'pipeline',
+  name: 'documentation',
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  steps: [
+    {
+      name: 'generate',
+      image: 'thegeeklab/ansible-doctor',
+      environment: {
+        ANSIBLE_DOCTOR_LOG_LEVEL: 'INFO',
+        ANSIBLE_DOCTOR_FORCE_OVERWRITE: true,
+        ANSIBLE_DOCTOR_EXCLUDE_FILES: 'molecule/',
+        ANSIBLE_DOCTOR_TEMPLATE: 'hugo-book',
+        ANSIBLE_DOCTOR_ROLE_NAME: '${DRONE_REPO_NAME#*.}',
+        ANSIBLE_DOCTOR_OUTPUT_DIR: '_docs/',
+      },
+    },
+    {
+      name: 'publish',
+      image: 'plugins/gh-pages',
+      settings: {
+        remote_url: 'https://gitea.rknet.org/ansible/${DRONE_REPO_NAME}',
+        netrc_machine: 'gitea.rknet.org',
+        username: { from_secret: 'gitea_username' },
+        password: { from_secret: 'gitea_token' },
+        pages_directory: '_docs/',
+        target_branch: 'docs',
+      },
+      when: {
+        ref: ['refs/heads/master'],
+      },
+    },
+  ],
+  trigger: {
+    ref: ['refs/heads/master', 'refs/tags/**', 'refs/pull/**'],
+  },
+  depends_on: [
+    'testing-rocky8',
+  ],
+};
+
+local PipelineNotification = {
+  kind: 'pipeline',
+  name: 'notification',
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  clone: {
+    disable: true,
+  },
+  steps: [
+    {
+      name: 'matrix',
+      image: 'thegeeklab/drone-matrix',
+      settings: {
+        homeserver: { from_secret: 'matrix_homeserver' },
+        roomid: { from_secret: 'matrix_roomid' },
+        template: 'Status: **{{ build.Status }}**<br/> Build: [{{ repo.Owner }}/{{ repo.Name }}]({{ build.Link }}){{#if build.Branch}} ({{ build.Branch }}){{/if}} by {{ commit.Author }}<br/> Message: {{ commit.Message.Title }}',
+        username: { from_secret: 'matrix_username' },
+        password: { from_secret: 'matrix_password' },
+      },
+    },
+  ],
+  depends_on: [
+    'documentation',
+  ],
+  trigger: {
+    status: ['success', 'failure'],
+    ref: ['refs/heads/master', 'refs/tags/**'],
+  },
+};
+
+[
+  PipelineLinting,
+  PipelineDeployment(scenario='rocky8'),
+  PipelineDocumentation,
+  PipelineNotification,
+]

.drone.yml

@@ -0,0 +1,152 @@
+---
+kind: pipeline
+name: linting
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+  - name: ansible-later
+    image: thegeeklab/ansible-later
+    commands:
+      - ansible-later
+
+  - name: python-format
+    image: python:3.9
+    commands:
+      - pip install -qq yapf
+      - "[ -z \"$(find .  -type f -name *.py)\" ] || (yapf -rd ./)"
+    environment:
+      PY_COLORS: 1
+
+  - name: python-flake8
+    image: python:3.9
+    commands:
+      - pip install -qq flake8
+      - flake8
+    environment:
+      PY_COLORS: 1
+
+trigger:
+  ref:
+    - refs/heads/master
+    - refs/tags/**
+    - refs/pull/**
+
+---
+kind: pipeline
+name: testing-rocky8
+
+platform:
+  os: linux
+  arch: amd64
+
+concurrency:
+  limit: 1
+
+workspace:
+  base: /drone/src
+  path: ${DRONE_REPO_NAME}
+
+steps:
+  - name: ansible-molecule
+    image: thegeeklab/molecule:3
+    commands:
+      - molecule test -s rocky8
+    environment:
+      HCLOUD_TOKEN:
+        from_secret: hcloud_token
+
+trigger:
+  ref:
+    - refs/heads/master
+    - refs/tags/**
+
+depends_on:
+  - linting
+
+---
+kind: pipeline
+name: documentation
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+  - name: generate
+    image: thegeeklab/ansible-doctor
+    environment:
+      ANSIBLE_DOCTOR_EXCLUDE_FILES: molecule/
+      ANSIBLE_DOCTOR_FORCE_OVERWRITE: true
+      ANSIBLE_DOCTOR_LOG_LEVEL: INFO
+      ANSIBLE_DOCTOR_OUTPUT_DIR: _docs/
+      ANSIBLE_DOCTOR_ROLE_NAME: ${DRONE_REPO_NAME#*.}
+      ANSIBLE_DOCTOR_TEMPLATE: hugo-book
+
+  - name: publish
+    image: plugins/gh-pages
+    settings:
+      netrc_machine: gitea.rknet.org
+      pages_directory: _docs/
+      password:
+        from_secret: gitea_token
+      remote_url: https://gitea.rknet.org/ansible/${DRONE_REPO_NAME}
+      target_branch: docs
+      username:
+        from_secret: gitea_username
+    when:
+      ref:
+        - refs/heads/master
+
+trigger:
+  ref:
+    - refs/heads/master
+    - refs/tags/**
+    - refs/pull/**
+
+depends_on:
+  - testing-rocky8
+
+---
+kind: pipeline
+name: notification
+
+platform:
+  os: linux
+  arch: amd64
+
+clone:
+  disable: true
+
+steps:
+  - name: matrix
+    image: thegeeklab/drone-matrix
+    settings:
+      homeserver:
+        from_secret: matrix_homeserver
+      password:
+        from_secret: matrix_password
+      roomid:
+        from_secret: matrix_roomid
+      template: "Status: **{{ build.Status }}**<br/> Build: [{{ repo.Owner }}/{{ repo.Name }}]({{ build.Link }}){{#if build.Branch}} ({{ build.Branch }}){{/if}} by {{ commit.Author }}<br/> Message: {{ commit.Message.Title }}"
+      username:
+        from_secret: matrix_username
+
+trigger:
+  ref:
+    - refs/heads/master
+    - refs/tags/**
+  status:
+    - success
+    - failure
+
+depends_on:
+  - documentation
+
+---
+kind: signature
+hmac: 164346722d7ad2cc3ee0703c38d4c990c93a28eea192c60f8ff3e8d7b98cf9ce
+
+...

.gitignore

@@ -0,0 +1,13 @@
+# ---> Ansible
+*.retry
+plugins
+library
+
+# ---> Python
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# ---> Docs
+/_docs

.later.yml

@@ -0,0 +1,19 @@
+---
+ansible:
+  custom_modules:
+    - iptables_raw
+    - openssl_pkcs12
+    - proxmox_kvm
+    - ucr
+    - corenetworks_dns
+    - corenetworks_token
+
+rules:
+  exclude_files:
+    - molecule/
+    - "LICENSE*"
+    - "**/*.md"
+    - "**/*.ini"
+
+  exclude_filter:
+    - LINT0009

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Robert Kaussow <mail@thegeeklab.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,10 @@
+# xoxys.chrony
+
+[![Build Status](https://img.shields.io/drone/build/ansible/xoxys.chrony?logo=drone&server=https%3A%2F%2Fdrone.rknet.org)](https://drone.rknet.org/ansible/xoxys.chrony)
+[![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
+
+Setup [chrony](https://chrony.tuxfamily.org/) NTP. You can find the full documentation at [https://galaxy.geekdocs.de](https://galaxy.geekdocs.de/roles/cloud/chrony/).
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

defaults/main.yml

@@ -0,0 +1,21 @@
+---
+chrony_port: 123
+chrony_acquisitionport: 1123
+chrony_allow: []
+
+chrony_conf_file: /etc/chrony/chrony.conf
+chrony_key_file: /etc/chrony/chrony.keys
+chrony_drift_file: /var/lib/chrony/drift
+
+# chrony_pool: $ "_unset_"
+chrony_server: "169.254.169.123 prefer iburst"
+
+chrony_log: "tracking measurements statistics"
+chrony_log_dir: /var/log/chrony
+
+chrony_maxupdateskew: 100.0
+chrony_dump_dir: /var/lib/chrony
+
+chrony_initstepslew_enabled: False
+chrony_initstepslew_threshold: 30
+chrony_initstepslew_servers: "169.254.169.123"

handlers/main.yml

@@ -0,0 +1,10 @@
+---
+- name: Restart service
+  systemd:
+    name: chrony.service
+    state: restarted
+    daemon_reload: True
+    enabled: True
+  listen: __chrony_restart
+  become: True
+  become_user: root

meta/main.yml

@@ -0,0 +1,28 @@
+# Standards: 0.2
+---
+galaxy_info:
+  # @meta author:value: [Robert Kaussow](https://gitea.rknet.org/xoxys)
+  author: Robert Kaussow <mail@thegeeklab.de>
+  namespace: xoxys
+  role_name: chrony
+  # @meta description: >
+  # [![Source Code](https://img.shields.io/badge/gitea-source%20code-blue?logo=gitea&logoColor=white)](https://gitea.rknet.org/ansible/xoxys.chrony)
+  # [![Build Status](https://img.shields.io/drone/build/ansible/xoxys.chrony?logo=drone&server=https%3A%2F%2Fdrone.rknet.org)](https://drone.rknet.org/ansible/xoxys.chrony)
+  # [![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](https://gitea.rknet.org/ansible/xoxys.chrony/src/branch/master/LICENSE)
+  #
+  # Setup chrony NTP.
+  # @end
+  description: Setup chrony NTP
+  license: MIT
+  min_ansible_version: 2.10
+  platforms:
+    - name: EL
+      versions:
+        - 8
+  galaxy_tags:
+    - ntp
+    - chrony
+dependencies: []
+collections:
+  - xoxys.general
+  - community.general

molecule/default

@@ -0,0 +1 @@
+rocky8/

molecule/pytest.ini

@@ -0,0 +1,3 @@
+[pytest]
+filterwarnings =
+    ignore::DeprecationWarning

molecule/requirements.yml

@@ -0,0 +1,6 @@
+---
+collections:
+  - name: https://gitea.rknet.org/ansible/xoxys.general/releases/download/v2.1.1/xoxys-general-2.1.1.tar.gz
+  - name: community.general
+
+roles: []

molecule/rocky8/converge.yml

@@ -0,0 +1,5 @@
+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: xoxys.chrony

molecule/rocky8/create.yml

@@ -0,0 +1,120 @@
+---
+- name: Create
+  hosts: localhost
+  connection: local
+  gather_facts: false
+  no_log: "{{ molecule_no_log }}"
+  vars:
+    ssh_port: 22
+    ssh_user: root
+    ssh_path: "{{ lookup('env', 'MOLECULE_EPHEMERAL_DIRECTORY') }}/ssh_key"
+  tasks:
+    - name: Create SSH key
+      user:
+        name: "{{ lookup('env', 'USER') }}"
+        generate_ssh_key: true
+        ssh_key_file: "{{ ssh_path }}"
+        force: true
+      register: generated_ssh_key
+
+    - name: Register the SSH key name
+      set_fact:
+        ssh_key_name: "molecule-generated-{{ 12345 | random | to_uuid }}"
+
+    - name: Register SSH key for test instance(s)
+      hcloud_ssh_key:
+        name: "{{ ssh_key_name }}"
+        public_key: "{{ generated_ssh_key.ssh_public_key }}"
+        state: present
+
+    - name: Create molecule instance(s)
+      hcloud_server:
+        name: "{{ item.name }}"
+        server_type: "{{ item.server_type }}"
+        ssh_keys:
+          - "{{ ssh_key_name }}"
+        image: "{{ item.image }}"
+        location: "{{ item.location | default(omit) }}"
+        datacenter: "{{ item.datacenter | default(omit) }}"
+        user_data: "{{ item.user_data | default(omit) }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: present
+      register: server
+      loop: "{{ molecule_yml.platforms }}"
+      async: 7200
+      poll: 0
+
+    - name: Wait for instance(s) creation to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_jobs
+      until: hetzner_jobs.finished
+      retries: 300
+      loop: "{{ server.results }}"
+
+    - name: Create volume(s)
+      hcloud_volume:
+        name: "{{ item.name }}"
+        server: "{{ item.name }}"
+        location: "{{ item.location | default(omit) }}"
+        size: "{{ item.volume_size | default(10) }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: "present"
+      loop: "{{ molecule_yml.platforms }}"
+      when: item.volume | default(False) | bool
+      register: volumes
+      async: 7200
+      poll: 0
+
+    - name: Wait for volume(s) creation to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_volumes
+      until: hetzner_volumes.finished
+      retries: 300
+      when: volumes.changed
+      loop: "{{ volumes.results }}"
+
+    # Mandatory configuration for Molecule to function.
+
+    - name: Populate instance config dict
+      set_fact:
+        instance_conf_dict:
+          {
+            "instance": "{{ item.hcloud_server.name }}",
+            "ssh_key_name": "{{ ssh_key_name }}",
+            "address": "{{ item.hcloud_server.ipv4_address }}",
+            "user": "{{ ssh_user }}",
+            "port": "{{ ssh_port }}",
+            "identity_file": "{{ ssh_path }}",
+            "volume": "{{ item.item.item.volume | default(False) | bool }}",
+          }
+      loop: "{{ hetzner_jobs.results }}"
+      register: instance_config_dict
+      when: server.changed | bool
+
+    - name: Convert instance config dict to a list
+      set_fact:
+        instance_conf: "{{ instance_config_dict.results | map(attribute='ansible_facts.instance_conf_dict') | list }}"
+      when: server.changed | bool
+
+    - name: Dump instance config
+      copy:
+        content: |
+          # Molecule managed
+
+          {{ instance_conf | to_nice_yaml(indent=2) }}
+        dest: "{{ molecule_instance_config }}"
+      when: server.changed | bool
+
+    - name: Wait for SSH
+      wait_for:
+        port: "{{ ssh_port }}"
+        host: "{{ item.address }}"
+        search_regex: SSH
+        delay: 10
+      loop: "{{ lookup('file', molecule_instance_config) | from_yaml }}"
+
+    - name: Wait for VM to settle down
+      pause:
+        seconds: 30

molecule/rocky8/destroy.yml

@@ -0,0 +1,78 @@
+---
+- name: Destroy
+  hosts: localhost
+  connection: local
+  gather_facts: false
+  no_log: "{{ molecule_no_log }}"
+  tasks:
+    - name: Check existing instance config file
+      stat:
+        path: "{{ molecule_instance_config }}"
+      register: cfg
+
+    - name: Populate the instance config
+      set_fact:
+        instance_conf: "{{ (lookup('file', molecule_instance_config) | from_yaml) if cfg.stat.exists else [] }}"
+
+    - name: Destroy molecule instance(s)
+      hcloud_server:
+        name: "{{ item.instance }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: absent
+      register: server
+      loop: "{{ instance_conf }}"
+      async: 7200
+      poll: 0
+
+    - name: Wait for instance(s) deletion to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_jobs
+      until: hetzner_jobs.finished
+      retries: 300
+      loop: "{{ server.results }}"
+
+    - pause:
+        seconds: 5
+
+    - name: Destroy volume(s)
+      hcloud_volume:
+        name: "{{ item.instance }}"
+        server: "{{ item.instance }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: "absent"
+      register: volumes
+      loop: "{{ instance_conf }}"
+      when: item.volume | default(False) | bool
+      async: 7200
+      poll: 0
+
+    - name: Wait for volume(s) deletion to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_volumes
+      until: hetzner_volumes.finished
+      retries: 300
+      when: volumes.changed
+      loop: "{{ volumes.results }}"
+
+    - name: Remove registered SSH key
+      hcloud_ssh_key:
+        name: "{{ instance_conf[0].ssh_key_name }}"
+        state: absent
+      when: (instance_conf | default([])) | length > 0
+
+    # Mandatory configuration for Molecule to function.
+
+    - name: Populate instance config
+      set_fact:
+        instance_conf: {}
+
+    - name: Dump instance config
+      copy:
+        content: |
+          # Molecule managed
+
+          {{ instance_conf | to_nice_yaml(indent=2) }}
+        dest: "{{ molecule_instance_config }}"
+      when: server.changed | bool

molecule/rocky8/molecule.yml

@@ -0,0 +1,24 @@
+---
+dependency:
+  name: galaxy
+  options:
+    role-file: molecule/requirements.yml
+    requirements-file: molecule/requirements.yml
+  env:
+    ANSIBLE_GALAXY_DISPLAY_PROGRESS: "false"
+driver:
+  name: delegated
+platforms:
+  - name: rocky8-chrony
+    image: rocky-8
+    server_type: cx11
+lint: |
+  /usr/local/bin/flake8
+provisioner:
+  name: ansible
+  env:
+    ANSIBLE_FILTER_PLUGINS: ${ANSIBLE_FILTER_PLUGINS:-./plugins/filter}
+    ANSIBLE_LIBRARY: ${ANSIBLE_LIBRARY:-./library}
+  log: False
+verifier:
+  name: testinfra

molecule/rocky8/prepare.yml

@@ -0,0 +1,15 @@
+---
+- name: Prepare
+  hosts: all
+  gather_facts: false
+  tasks:
+    - name: Bootstrap python for Ansible
+      raw: |
+        command -v python3 python || (
+        (test -e /usr/bin/dnf && sudo dnf install -y python3) ||
+        (test -e /usr/bin/apt && (apt -y update && apt install -y python-minimal)) ||
+        (test -e /usr/bin/yum && sudo yum -y -qq install python3) ||
+        echo "Warning: Python not boostrapped due to unknown platform."
+        )
+      become: true
+      changed_when: false

molecule/rocky8/tests/test_default.py

@@ -0,0 +1,16 @@
+import os
+
+import testinfra.utils.ansible_runner
+
+testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
+    os.environ["MOLECULE_INVENTORY_FILE"]
+).get_hosts("all")
+
+
+def test_chrony_running_and_enabled(host):
+    command = "XDG_RUNTIME_DIR=/run/user/$(id -u) systemctl --user is-enabled chrony.service"
+
+    with host.sudo(user="chrony"):
+        status = host.check_output(command)
+
+    assert status == "enabled"

setup.cfg

@@ -0,0 +1,12 @@
+[flake8]
+ignore = D100, D101, D102, D103, D105, D107, E402, W503
+max-line-length = 99
+inline-quotes = double
+exclude = .git,.tox,__pycache__,build,dist,tests,*.pyc,*.egg-info,.cache,.eggs,env*
+
+[yapf]
+based_on_style = google
+column_limit = 99
+dedent_closing_brackets = true
+coalesce_brackets = true
+split_before_logical_operator = true

tasks/main.yml

@@ -0,0 +1,2 @@
+---
+- include: setup.yml

tasks/setup.yml

@@ -0,0 +1,21 @@
+---
+- block:
+    - name: Install chrony
+      package:
+        name: chrony
+        state: present
+
+    - name: Deploy configuration file
+      template:
+        src: etc/chrony.conf.j2
+        dest: /etc/chrony.conf
+      notify: __chrony_restart
+
+    - name: Ensure service is up and running
+      systemd:
+        name: chronyd.service
+        state: started
+        daemon_reload: True
+        enabled: True
+  become: True
+  become_user: root

templates/etc/chrony.conf.j2

@@ -0,0 +1,56 @@
+# {{ ansible_managed }}
+
+port {{ chrony_port }}
+acquisitionport {{ chrony_acquisitionport }}
+pool {{ chrony_pool }}
+server {{ chrony_server }}
+
+keyfile {{ chrony_key_file }}
+commandkey 1
+
+driftfile {{ chrony_drift_file }}
+log {{ chrony_log }}
+logdir {{ chrony_log_dir }}
+maxupdateskew {{ chrony_maxupdateskew }}
+dumponexit
+# Specify directory for dumping measurements.
+
+
+dumpdir {{ chrony_dump_dir }}
+{% if chrony_initstepslew_enabled | bool %}
+initstepslew {{ chrony_initstepslew_threshold }} {{ chrony_initstepslew_servers }}
+{% endif %}
+
+# This directive lets 'chronyd' to serve time even if unsynchronised to any
+# NTP server.
+
+#local stratum 10
+
+{% if chrony_allow | length > 0 %}
+# This directive designates subnets (or nodes) from which NTP clients are allowed
+# to access to 'chronyd'.
+{% for block in chrony_allow %}
+allow {{ block }}
+{% endfor %}
+{% endif %}
+
+# This directive forces `chronyd' to send a message to syslog if it
+# makes a system clock adjustment larger than a threshold value in seconds.
+
+logchange 0.5
+
+# This directive defines an email address to which mail should be sent
+# if chronyd applies a correction exceeding a particular threshold to the
+# system clock.
+
+# mailonchange root@localhost 0.5
+
+# This directive tells 'chronyd' to parse the 'adjtime' file to find out if the
+# real-time clock keeps local time or UTC. It overrides the 'rtconutc' directive.
+
+hwclockfile /etc/adjtime
+
+# This directive enables kernel synchronisation (every 11 minutes) of the
+# real-time clock. Note that it can't be used along with the 'rtcfile' directive.
+
+rtcsync